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Shell Programming and Scripting
Search parameters on file with AWK
Post 302480214 by bartus11 on Tuesday 14th of December 2010 08:47:29 AM
12-14-2010
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10 More Discussions You Might Find Interesting
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Hi
I am writing a shell script in which I have to search all records
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I have an awk file where I need to pass a filename and a value as a parameter from a sh script. I need to know how to pass those values in the sh script and how to use the same in the awk file.
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Hi,
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Hi, I am not sure if this will work or not. I am getting a syntax error.
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Hi,
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cap
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a command like the one below will search a file from the date and time specified to the END of the log.
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I have the following code as a file which a user can choose with an option to search in that file. The file name is not specified and can have any name and extension. Now a sample of this file is like this:
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Here Is a problem I am facing with awk.
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Hello,
Some time ago a helpful awk file was provided on the forum which I give below:
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hhh ddd jjj
jjj cccfile2.txt
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LEARN ABOUT OSX
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1) NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)